package com.itheima.test2;

public class TestInterface{
    public static void main(String[] args) {
        System.out.println(Inter.NUM);
    }
}

class InterImpl extends Object implements Inter {

    public InterImpl() {
        super();
    }

    public void method() {
//        NUM = 20;
        System.out.println(NUM);
    }

    @Override
    public void show() {

    }
}
